000 00386 am a2200121 a 4500
100 1 _aWalker, P.H.
245 1 _aPostglacial environments in relations to landscape and soils on the cary drift, Iowa
260 _aAmes
_c1966
300 _a841-872 p.
942 _2udc
_cB
440 _aIowa Agricultural and Home Economics Experiment Station. Research Bulletin No. 549
901 _aS13459
999 _c113501
_d113501